From nobody Fri Dec 19 17:46:48 2025 Received: from dggsgout12.his.huawei.com (dggsgout12.his.huawei.com [45.249.212.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 002791DFDA5; Sat, 24 May 2025 06:18:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.56 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748067501; cv=none; b=rwcsDvn5GXABpoDsId2mJ1DyMq0pXO/vVU1Yt3kyVVuSqZC9TIPum6imvCRz5jP5wEYAWJtTuhuBIuq6Ye7rPRXPr4mZza/eyqZzLHVgYFzr9ETDWdm9VE5EDfcMyMNbSfdpSmcSJjkDOEpY5EC3IC/0a3CaNxLZuUM2BcCC7oY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748067501; c=relaxed/simple; bh=gF4q1MnynjtKoY4K5z56lCg8NbxZd1ZEpE+ukJebSYM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=HpJ93JugS3O39USb6NJPc1G0p/FVEla4M8V4OkHRxe8sfV45gHxTV9kDQ2X41/8xrNHJTQ1/ypzDZIbNZ5Db8i18z6Q8ecuhfphLIJVbMQj9DxQauPEs5BXfBZ4WeLZgEwvVGYm/Rida8OdQF0N7ooDHFv196qWxsaNwpDrIXkY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com; spf=pass smtp.mailfrom=huaweicloud.com; arc=none smtp.client-ip=45.249.212.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huaweicloud.com Received: from mail.maildlp.com (unknown [172.19.93.142]) by dggsgout12.his.huawei.com (SkyGuard) with ESMTPS id 4b4Bfg3R7rzKHMbS; Sat, 24 May 2025 14:18:19 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.128]) by mail.maildlp.com (Postfix) with ESMTP id EDDE71A018D; Sat, 24 May 2025 14:18:17 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.104.67]) by APP4 (Coremail) with SMTP id gCh0CgCnCl+dZDFo3etkNQ--.42979S17; Sat, 24 May 2025 14:18:17 +0800 (CST) From: Yu Kuai To: hch@lst.de, xni@redhat.com, colyli@kernel.org, song@kernel.org, yukuai3@huawei.com Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org, yukuai1@huaweicloud.com, yi.zhang@huawei.com, yangerkun@huawei.com, johnny.chenyi@huawei.com Subject: [PATCH 13/23] md/md-bitmap: fix dm-raid max_write_behind setting Date: Sat, 24 May 2025 14:13:10 +0800 Message-Id: <20250524061320.370630-14-yukuai1@huaweicloud.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20250524061320.370630-1-yukuai1@huaweicloud.com> References: <20250524061320.370630-1-yukuai1@huaweicloud.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: gCh0CgCnCl+dZDFo3etkNQ--.42979S17 X-Coremail-Antispam: 1UD129KBjvdXoWrKry5trW3Xw1DWrW8Kr4kWFg_yoWfJrc_u3 WrWrZaqFyDGr1rJw13Zw13ZrZ0q3Z8X3WDurWxKrZ3Zrn8Za4rurs5u3yxta1fuFWDC3y5 Wry7Xr4rXrs5CjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbvAFF20E14v26rWj6s0DM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI8067AKxVWUAVCq3wA2048vs2 IY020Ec7CjxVAFwI0_Xr0E3s1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxSw2x7M28E F7xvwVC0I7IYx2IY67AKxVW7JVWDJwA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxVW8Jr0_Cr 1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I0E14v26rxl6s0D M2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjx v20xvE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1l F7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7M4IIrI8v6xkF7I0E8cxan2 IY04v7MxkF7I0En4kS14v26r1q6r43MxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY 6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17 CEb7AF67AKxVWUtVW8ZwCIc40Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r4j6ryUMIIF 0xvE2Ix0cI8IcVCY1x0267AKxVW8Jr0_Cr1UMIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCw CI42IY6I8E87Iv67AKxVW8JVWxJwCI42IY6I8E87Iv6xkF7I0E14v26r4UJVWxJrUvcSsG vfC2KfnxnUUI43ZEXa7VUbPC7UUUUUU== X-CM-SenderInfo: 51xn3trlr6x35dzhxuhorxvhhfrp/ Content-Type: text/plain; charset="utf-8" From: Yu Kuai It's supposed to be COUNTER_MAX / 2, not COUNTER_MAX. Signed-off-by: Yu Kuai Reviewed-by: Christoph Hellwig Reviewed-by: Hannes Reinecke --- drivers/md/md-bitmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/md/md-bitmap.c b/drivers/md/md-bitmap.c index 689d5dba9328..535bc1888e8c 100644 --- a/drivers/md/md-bitmap.c +++ b/drivers/md/md-bitmap.c @@ -777,7 +777,7 @@ static int md_bitmap_new_disk_sb(struct bitmap *bitmap) * is a good choice? We choose COUNTER_MAX / 2 arbitrarily. */ write_behind =3D bitmap->mddev->bitmap_info.max_write_behind; - if (write_behind > COUNTER_MAX) + if (write_behind > COUNTER_MAX / 2) write_behind =3D COUNTER_MAX / 2; sb->write_behind =3D cpu_to_le32(write_behind); bitmap->mddev->bitmap_info.max_write_behind =3D write_behind; --=20 2.39.2